What need consider as a structural and functional unit of the human liver?

The article discusses the issues of structural and functional organization of the human liver. The analysis of classical ideas in this problem is carried out and their shortcomings are shown. The data of a number of authors are presented in whose works on the reconstruction of the hepatic lobules in humans and cats it was shown that the liver parenchyma consists of complexes of the hepatic lobules. Each complex of hepatic lobules is a combination of 2-4 classic lobules, united by one common base. The central veins in the lobules of the complex begin with the 2nd third of the length of the lobule. Merging, they form a collective vein located in the common base of the lobules. The hepatic lobule complex is morphologically and functionally combined. Separate classic hepatic lobule in the liver is rare. The author proves that portal lobules and hepatic acini do not exist as real morphological structures, since their volumetric reconstruction cannot be created.